Location of recent earthquakes in the Campi Flegrei A new swarm of earthquakes was recorded under the Phlegean Fields near Naples yesterday (8 Sep). The quakes are related to what is called bradyseismus, a slow periodic ground inflation and deflation, which make the land of the Phlegraean Fields rise and sink over years. On the morning of 8 September, about 200 earthquakes of magnitude up to 1.6 were detected by the Osservatorio Vesuviano (OV). Its director, Marcello Martini, said that this phenomenon repeats periodically and is linked to the process of deformation of the Phlegraean Fields. Earthquakes today have not surprised the experts. Small earthquake swarms were already recorded in the Campi Flegrei very recently: on August 4 last year, when the shocks were only a few tens, and between 19 and 20 April, with 21 earthquakes of magnitude 1.4 maximum. The process of deformation of this area (which is one of what often has been described as a "supervolcano") is continuous. The ground rises and falls periodically and changes in this movement are often accompanied by small earthquakes. For example, Martini explains, "between 1982 and 1985 began a slow decline that ended in 2005. Since then, a slow rise of the land began that is still continuing today." "What that past experience has taught us," says the expert," is that earthquakes can occur with the lifting process. Certainly, however, the phenomenon of today still has to be studied. There is also the fact, he added, that the peaks of speed in the movement caused by bradyseismus has been reduced by 10 times compared to the maximum of 15 cm per month measured 30 years ago. At present this is not a disturbing phenomenon, but we follow it very carefully." According to OV there is no relationship between the swarm and the drilling recently launched as part of an international project on supervolcanoes led by Italy's INGV. "The drilling - says Martini - reached only 200 meters this time, while in the past drillings were made to up to 400 m depth, and second, the drilling is in the Bagnoli area, while the swarm is concentrated in the center of the caldera in the area of Pozzuoli." [link to www.volcanodiscovery.com]

63: Nicaragua’s San Cristóbal volcano erupts with 4 km ash plumePosted on September 8, 2012 by The Extinction Protocol September 8, 2012 – NICARAGUA – Nicaragua’s tallest volcano belched an ash plume up to 2 1/2 miles (4 km) into the atmosphere on Saturday, prompting the evacuation of hundreds of nearby residents who heard eruptions emanating from its crater. There were no immediate reports of injuries or damage, authorities said. The 5,725-foot (1,745-meter) San Cristóbal volcano, located about 95 miles (150 km) north of the capital Managua in the country’s volcano-dotted northwest, has been active in recent years, and stirred in mid-2008, when it expelled gas and rumbled with a series of small eruptions. The government expects to evacuate about 3,000 people from around San Cristobal, though numerous families already have done so on their own, said Guillermo Gonzalez, who heads Sinapred, a government emergency and disaster relief agency. “We already have nearly the entire apparatus underway,” Gonzalez said. [link to theextinctionprotocol.wordpress.com]

Costa Rica earthquake awakens Nicaraguan volcano, which last erupted in 50 B.C: alert level raisedPosted on September 8, 2012 by The Extinction Protocol September 8, 2012 – MANAGUA – The Apoyeque Volcano, located northwest of the capital, was calm Friday, but officials continued monitoring it for volcanic tremors, a release from the Nicaraguan Institute of Territorial Studies (INETER) said. The agency registered 21 low-intensity volcano-related tremors between Thursday afternoon and Friday morning, prompting the government to issue a green advisory alert. Seismic activity near the volcano, located 10 kilometers northwest of Managua, “decreased Friday morning, but it doesn’t mean that it has disappeared,” INETER Geophysics Director Angélica Muñoz told reporters. She also announced that a group of experts will travel to the volcano to investigate the earthquakes causes. The volcanic tremors began after a magitude- 7.6 earthquake hit neighboring Costa Rica on Wednesday. –Tico TimesThe last eruption of the volcano was in 50 B.C. The volcano is capable of VEI 6 stage eruptions.Four volcanoes in Costa Rica closely monitored after quake: When seeing the after effects of the earthquake in Costa Rica this past week, one thing that needs to be watched closely is the active volcanoes within the country. Even a small shift under one of these giants could cause an eruption. At least four of the seven active volcanoes in the country are in the crosshairs of scientists after the earthquake of 7.6 magnitude occurred on Wednesday in Costa Rica. These are Arenal (Alajuela), Rincon de la Vieja (Guanacaste), Turrialba (Cartago) and Poás (Alajuela). According to specialists agree Volcanological and Seismological Observatory of Costa Rica (OVSICORI-A) and the National Seismological Network (RSN: ICE-UCR), due to the size of the earthquake, it is normal volcanic structures; especially those already vulnerable are affected. There is a rearrangement of material and even chemical changes. The clearest example is the Arenal, where locals reported a noise characteristic of rolling boulders.” We know there is a cave in the north, in the direction of the community of La Palma,” said Maria Martinez geochemistry, OVSICORI. A team of this institution made field visit to the site and will release more information today. “In the Poas, how little we could see the rangers (by weather), report no noticeable landslides and cracks,” he added. However, Raul Mora, the RSN, ensures that the most noticeable changes have been in its lagoon.” It looks much sulfur yellow spots on the lake, which is average at Poás before the earthquake but were not.” In the Turrialba volcano has reported a slight collapse, but “the bottom” of the colossus, rather than volcanic structure.” The emission level is similar to what was observed previously,” said the expert OVSICORI. Because there have been earthquakes there, the RSN yesterday decided to install a seismological station between between that and the Irazu volcano. This is done so that in the medium term is uncertain whether the earthquakes that occur there (as replicas) are the result of a tectonic or volcano itself. Scientists have not yet visited the Rincon de la Vieja, but have received reports from neighbors (who live about 17 miles west of the volcano), who claim that the crystalline water normally receive from a nascent nearby nature has a milky consistency apparently mixed with sulfur. “He also mentioned alleged cracks opened in the north, but we have not confirmed. We also know that, from time to time, there looms a steam plume. That happens from days before the earthquake,” explained Martinez. “We know from experience in other countries that movements after more than 7 degrees of intensity there is the possibility that changes occur in the activity of volcanoes,” said Mora. “We’re not saying there’s a risk. What we say is that it is best to take the pulse investigate,” he said Mora. –Costa Rican Times [link to theextinctionprotocol.wordpress.com]

Quoting: Luisport

A VEI 6 Volcano awakening is worrying indeed! I cant believe how many Volcanoe have awakened recently that havent erupted for a long time...interesting times indeed!

Interested observer of all things interesting!

Please note : Where appropriate for posted images/ graphs I acknowledge the New Zealand GeoNet project and its sponsors EQC, GNS Science and LINZ, for providing data/images used in my study and analyses of Volcanic and Earthquake information in New Zealand.

When every volcano on the planet has begun erupting, do you think anybody but us would even know?

Quoting: Anonymous Coward 1402081

I think once Yellowstone goes off they might start to notice...

Interested observer of all things interesting!

Please note : Where appropriate for posted images/ graphs I acknowledge the New Zealand GeoNet project and its sponsors EQC, GNS Science and LINZ, for providing data/images used in my study and analyses of Volcanic and Earthquake information in New Zealand.

63: Nicaragua’s San Cristóbal volcano erupts with 4 km ash plumePosted on September 8, 2012 by The Extinction Protocol September 8, 2012 – NICARAGUA – Nicaragua’s tallest volcano belched an ash plume up to 2 1/2 miles (4 km) into the atmosphere on Saturday, prompting the evacuation of hundreds of nearby residents who heard eruptions emanating from its crater. There were no immediate reports of injuries or damage, authorities said. The 5,725-foot (1,745-meter) San Cristóbal volcano, located about 95 miles (150 km) north of the capital Managua in the country’s volcano-dotted northwest, has been active in recent years, and stirred in mid-2008, when it expelled gas and rumbled with a series of small eruptions. The government expects to evacuate about 3,000 people from around San Cristobal, though numerous families already have done so on their own, said Guillermo Gonzalez, who heads Sinapred, a government emergency and disaster relief agency. “We already have nearly the entire apparatus underway,” Gonzalez said. “A response plan exists for volcanic eruptions and every community has clearly defined places for people to go to once they are evacuated,” he said. A gas and ash plume stretched between 2 and 2 1/2 miles (3.5 and 4 km) into the atmosphere, Gonzalez said. The Nicaraguan Institute of Territorial Studies, which monitors the country’s volcanoes, said in a preliminary report that “more gas emissions and sporadic explosions” could be expected from San Cristobal. The volcano is one of the most active along Nicaragua’s Pacific coast, according to the institute, and often averages nearly 100 daily seismic movements. Government spokeswoman Rosario Murillo earlier said authorities were still assessing the strength of the volcanic activity. As many as 20,000 people could ultimately be affected, she said. –Euro News [link to theextinctionprotocol.wordpress.com]

Updated: Sunday, 09 September, 2012 at 03:31 UTC Description The San Cristobal volcano in Nicaragua rumbled to life Saturday with three explosions, forcing the evacuation of 3,000 residents, authorities said. Television footage showed a column of smoke and ash rising from the cone of the volcano, Nicaragua's tallest at 1,745 meters (5,725 feet), in the northeast. The civil defense agency said it readied 50 trucks and 350 troops to support the population in case of greater emergency, while the Nicaraguan Institute of Territorial Studies, or INETER, added they expect "more gas emissions and sporadic explosions." There are some hamlets perched on the slopes of the volcano, and winds could push the fumes from the eruption there, said the director of the national disaster prevention and mitigation agency, William Gonzalez. He said authorities ordered some 3,000 people living in villages in that zone to evacuate. Ashes fell on the towns of El Viejo, El Chonco, Villa 15 de Julio and Rancheria, according to a statement by INETER, which monitors volcanic activity. San Cristobal, located 135 kilometers (83 miles) northwest of Managua, is one of the country's most active volcanoes. Since Thursday, when an earthquake of 7.6-magnitude rocked neighboring Costa Rica and was also felt in Nicaragua, INETER began surveillance at several active volcanoes, fearing the powerful quake would have an "impact on the activation" on the volcanoes. Rosario Murillo, the first lady and government spokeswoman, said some US experts have noted that the ash plume reaches 5,000 meters, which could be an indicator of potential for greater activity. [link to hisz.rsoe.hu]

Nicaragua’s largest volcano erupted three times this morning, belching gas and ash 1,500 meters into the sky and forcing the evacuation of thousands of families in the rural northwestern department of Chinandega, according to government media sources. No damages or injuries have been reported. San Cristobal’s eruption is being monitored by the government officials and could result in the evacuation of 20,000 people, according to first lady and government spokeswoman Rosario Murillo. Update : Nearly 3000 people living in La Bolsa, Versalles, El Pando, Pellisco and Apazate are relocated. President Ortega is carefully following up the situation and says that he may order a second eveacuation for approx. 20000 people. 400 people from the Civil Defense have been asked to be ready in case the evacuation will be ordered.

Across the pond, in New Zealand, continuous volcanic tremor rattles White Island volcano again today.

Recent satellite data show significant SO2 emission from Popocatepetl, Nevado Del Ruiz, Ambrym (Vanuatu), Bagana (Bougainville Island), and Krakatoa (Sunda Strait) which apparently experienced a large eruption on 04 September (judging from imagery on that date).

There’s still something “fishy” with the seismogram depictions at Apoyeque but, upon second glance, I would believe those small events are small earthquakes. Not a good scenario given the proximity of Managua if Apoyeque is indeed waking-up!

Judith says: September 9, 2012 at 19:56 Interesting article on Santorini which states a giant balloon of magma has inflated under Santorini only a small part translated.

,,A new study published in ‘Nature Geoscience’ suggests the Chamber rock melted under the volcano of Santorini expanded between 10 and 20 million cubic meters – up to 15 times the size of the London Olympic Stadium – between January 2011 and April 2012.The growth of this “balloon” of magma has made the island surface amounts between 8 and 14 centimeters during this period, according to a team of researchers led by scientists at the University of Oxford. The results come from an expedition funded by the Natural Environment Research Council the natural environment Research Council images that used the Global Positioning System receivers and radar satellite GPS, for its acronym in English which can detect movements of only a few millimeters of the Earth’s surface.,,

Basically if 10% of that magma erupts (not counting with old magma), then we will have a 1-2 cubic km eruption, which is a large VEI4 to a small VEI5 sized eruption. This is roughly slightly larger than the previous eruption of Grimsvotn. The 2011-2011 inflation of Santorini is however a bit smaller than the one observed for Grimsvotn before its 2011 eruption.

I think Santorini at the very least will do a VEI4, similar to Eyjafjallajokull, if not something identical to Grimsvotn.

Reply Judith says: September 9, 2012 at 20:16 There may be a swarm starting near the Aegean Sea there have been 4 EQ’S in just over 10 mins.

Judith says: September 9, 2012 at 19:56 Interesting article on Santorini which states a giant balloon of magma has inflated under Santorini only a small part translated.

,,A new study published in ‘Nature Geoscience’ suggests the Chamber rock melted under the volcano of Santorini expanded between 10 and 20 million cubic meters – up to 15 times the size of the London Olympic Stadium – between January 2011 and April 2012.The growth of this “balloon” of magma has made the island surface amounts between 8 and 14 centimeters during this period, according to a team of researchers led by scientists at the University of Oxford. The results come from an expedition funded by the Natural Environment Research Council the natural environment Research Council images that used the Global Positioning System receivers and radar satellite GPS, for its acronym in English which can detect movements of only a few millimeters of the Earth’s surface.,,

Basically if 10% of that magma erupts (not counting with old magma), then we will have a 1-2 cubic km eruption, which is a large VEI4 to a small VEI5 sized eruption. This is roughly slightly larger than the previous eruption of Grimsvotn. The 2011-2011 inflation of Santorini is however a bit smaller than the one observed for Grimsvotn before its 2011 eruption.

I think Santorini at the very least will do a VEI4, similar to Eyjafjallajokull, if not something identical to Grimsvotn.

Reply Judith says: September 9, 2012 at 20:16 There may be a swarm starting near the Aegean Sea there have been 4 EQ’S in just over 10 mins.

Please note : Where appropriate for posted images/ graphs I acknowledge the New Zealand GeoNet project and its sponsors EQC, GNS Science and LINZ, for providing data/images used in my study and analyses of Volcanic and Earthquake information in New Zealand.

Judith says: September 9, 2012 at 19:56 Interesting article on Santorini which states a giant balloon of magma has inflated under Santorini only a small part translated.

,,A new study published in ‘Nature Geoscience’ suggests the Chamber rock melted under the volcano of Santorini expanded between 10 and 20 million cubic meters – up to 15 times the size of the London Olympic Stadium – between January 2011 and April 2012.The growth of this “balloon” of magma has made the island surface amounts between 8 and 14 centimeters during this period, according to a team of researchers led by scientists at the University of Oxford. The results come from an expedition funded by the Natural Environment Research Council the natural environment Research Council images that used the Global Positioning System receivers and radar satellite GPS, for its acronym in English which can detect movements of only a few millimeters of the Earth’s surface.,,

Basically if 10% of that magma erupts (not counting with old magma), then we will have a 1-2 cubic km eruption, which is a large VEI4 to a small VEI5 sized eruption. This is roughly slightly larger than the previous eruption of Grimsvotn. The 2011-2011 inflation of Santorini is however a bit smaller than the one observed for Grimsvotn before its 2011 eruption.

I think Santorini at the very least will do a VEI4, similar to Eyjafjallajokull, if not something identical to Grimsvotn.

Reply Judith says: September 9, 2012 at 20:16 There may be a swarm starting near the Aegean Sea there have been 4 EQ’S in just over 10 mins.

Judith says: September 9, 2012 at 19:56 Interesting article on Santorini which states a giant balloon of magma has inflated under Santorini only a small part translated.

,,A new study published in ‘Nature Geoscience’ suggests the Chamber rock melted under the volcano of Santorini expanded between 10 and 20 million cubic meters – up to 15 times the size of the London Olympic Stadium – between January 2011 and April 2012.The growth of this “balloon” of magma has made the island surface amounts between 8 and 14 centimeters during this period, according to a team of researchers led by scientists at the University of Oxford. The results come from an expedition funded by the Natural Environment Research Council the natural environment Research Council images that used the Global Positioning System receivers and radar satellite GPS, for its acronym in English which can detect movements of only a few millimeters of the Earth’s surface.,,

Basically if 10% of that magma erupts (not counting with old magma), then we will have a 1-2 cubic km eruption, which is a large VEI4 to a small VEI5 sized eruption. This is roughly slightly larger than the previous eruption of Grimsvotn. The 2011-2011 inflation of Santorini is however a bit smaller than the one observed for Grimsvotn before its 2011 eruption.

I think Santorini at the very least will do a VEI4, similar to Eyjafjallajokull, if not something identical to Grimsvotn.

Reply Judith says: September 9, 2012 at 20:16 There may be a swarm starting near the Aegean Sea there have been 4 EQ’S in just over 10 mins.

Apoyeque is a shield volcano located on the Chiltepe Peninsula on Lake Managua in Nicaragua. It has two lake-filled craters, Apoyeque to the northwest and Jiloá (or Xiloá) to the southeast. To make matters more confusing the name Apoyeque is sometimes reserved for the east crater alone, with the whole complex being called Chiltepe. There are also two lava domes (circular or mound-shaped formations, produced by the slow eruption of viscous lava), Talpetatl and Miraflores.

Apoyeque is last thought to have erupted in about 50 BC, but that eruption is thought to have been spectacular, with around 18 km³ of material being ejected, one of the largest known eruptions ever. The volcano is also thought to have undergone massive eruptions in around 1050 BC, 2550 BC and 4160 BC....